Die-cast-boat construction



April 24, 1928. 1,667,561

L. MEDIAVILLA DIE CAST BOAT CONSTRUCTION Filed April 18, 1927 Jr 27" mPatented Apr. 24, 1928. i

UNITED STATES PATENT OFFICE.

LEOPOLDO MEDIA'VILLA, OF NEW YORK, N. Y,

DIE-CAST-BOAT CONSTRUCTION.

Application filed April 18, 1927. Serial No. 184,457.

provide a boat, the construction of which may be readily duplicated, andwhich may I be fabricated by unskilled labor and is held together bybolts, screws, or the like as a means of ready replacement.

Another object of the invention is to pro vide a boat, the constructionof which provides rigid and strong qualities.

A still further object of the invention, is

to provide a boat readily and easily repaired in event of accident, dueto collision, or the like.

Fig. 1 is a side elevational view of a boat, constructed in accordancewith the invention.

Fig. 2 is an enlarged fragmentary transverse view thereof, showing thecover members removed.

Fig. 3 is a similar view to that shown in Fig. 2 showing the covermembers in place.

Fig. 4 is a fragmentary transverse sectional View thereof.

. Fig. 5 is a fragmentary top plan view'of my improved boat.

Fig. 6 is a detail view of the cover members, as embodied in my improvedboat.

Fig. 7 is a further development of the plate members as embodied in myimproved boat.

As here embodied my improved boat com prises a keel member 10,constructed of one piece of metal, shaped, or formed as may be desired,depending upon the design and type of the boat, so as to form the stern11 and the stem 12. The keel member 10, is provided with side extendedelements 13 and 14, intermediate thereto and oppositely positioned. Theplate members 15, are provided with flanged elements 16, positioned atthe four sides of the plate members 15. The flanged elements 16, areprovided with aplurality of apertures 17, adapted to re-.

a means of removably attaching the lower plate members 20 to the keelmember 10.

The upper plate m bers 21, are provided with an upper flange element 22,somewhat wider than the flanged elements 16, so as to provide a gunnel,preferably knurled or roughened, so as to provide a means of preventingpassengers from slipping when entering or leaving my improved boat.

As a means of providing a highly water tight boat, I have placed sealingmembers 23, preferably of Water proof paper, composition material,rubber or the like, in strip form, provided with apertures adapted toreceive thebolts 18, as a means of preventing leaks at the jointsbetween the plate members 15, 20, 21, and the keel member 10. It will beunderstood that the plate members 15, 20, and 21, are preferablydiecast, from any non-corrosive metal, the dies employed being tooled,or formed so'as to provide the necessary shape or contour, de-

pending upon the design and type of the boat.

The plate members 15, 20 and 21, are of two distinct or differentlengths, and are positioned sov as to provide longitudinal seams 24,non-continuous or staggered, so as to provide additional strength to theconstruction of my improved boat.

. The above mentioned upper plate members 21, are provided with extendedportions 25 and 26, longitudinally positioned on the outside outersurface of the upper 7 late members 21, so as to provide a longitudinalgroove, adapted to receive the flexible memher 27 rubber tubing, or thelike, extended longitudinally the entire length of my improved boat, andhaving a wire 28, positioned inside the flexible member 27. The wire 28,is secured at its extremities to the twin buckles 29 and 30, attached tothe upper portion of the stern 11 and stern 12. The

said flexible members 27 being similarl attached at both sides of myimproved oat, so as to provide a guard against collisions, or the like.i a

The-upper flanged elements 22, are pro vided with raised portions 31,having an aperture formed therein, adaptedto receive.

oar locks, of the conventional type, which are ordinarily provided toaccommodate oars, not shown in the accompanying. drawing, as a means ofpropelling my im roved boat. The usual rudder 35, 1s plvota y attached,as at 36- and '37, tothestern12, and

is provided with the usual tiller 38, as a means of steering my improvedboat.

It will be understood that I do not necessarily limit the use of myinvention to row boats, as here described, but to all classes and typesof boats including life boats, mlptor boats, barges, steam ships, andthe li e.

It will be, further understood that all necessary equipment, such asseats, motor support-s, air tanks, and such equipment, as may bedesired, may be embodied in my improved boat, depending upon the sizeand type of boat constructed.

The above described construction, being such as will permit my improvedboat to be constructed accurately, due to the die cast feature. Theabove referred to plate members may have stamped thereon, or otherwiseaflixed thereto, designating or identifyin symbols, so as to facilitatethe assembling thereof. I have also eliminated the necessity of paint,as a dry cloth may be used to keep the exterior and interior of myimproved boat in good appearance.

As a means of providing separate compartments so as to prevent myimproved boat from sinking in event a number of the said'plate membersare punctured, I have prpvided cover members 31, or plates, adapted tocover or enclose the plate members 15, 20 and 21. The cover members. 31are formed or bent, so as to conform to the contour of the said platemembers. The cover members 31 are provided with apertures 33, positionedadjacent to the edges thereof,

adapted to receive the threaded members, 32, screws, bolts, or the like,as a means of attaching the cover members 31 to the said flangedelements of the above mentioned plate members. The cover members 31, areprovided with inwardly extended portions 34, or ribs, as a means ofprovidin a reinforcement for the said cover mem ers.

In Fig. 7 of the accompanying drawing, I have shown the plate members16, 20 and 21, provided with transverse and longitudinal ribs 39 and 40respectively, formed or shaped concaved. The above describedconstruction being such as will rovide additional strength thereto, asis esirable particularly in steam ships, and larger types of boats.

Having thus described my invention what I claim as new and desire toprotect by Letters Patent of the United States is as follows:

In a ship of the class described, a keel comprising an inner section andarcuately arranged series of side plates comprising flanges for joiningthev adjacent plates together and to said keel disposed adjacent eachother throughout the entire length of said keel, each alternate seriescomprising an arrangement of individual plates joined together atsubstantially the same distance above said keel and at a differentelevation from the joint of those series therebetween for providingirregular seams.

In testimony whereof I have aflixed my signature.

LEOPOLDO MEDIAVILLA.

